package com.my.chapter2;

public class practice10 {
    public static void main(String[] args) {
        if(args.length<3) {
            System.out.println("需要3个元素");
            System.exit(1);
        }
        System.out.println(args[0]);
        System.out.println(args[1]);
        System.out.println(args[2]);
    }
}
